JP4073745B2 - Piping structure of hot water storage type electric water heater - Google Patents

Piping structure of hot water storage type electric water heater Download PDF

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Publication number
JP4073745B2
JP4073745B2 JP2002278470A JP2002278470A JP4073745B2 JP 4073745 B2 JP4073745 B2 JP 4073745B2 JP 2002278470 A JP2002278470 A JP 2002278470A JP 2002278470 A JP2002278470 A JP 2002278470A JP 4073745 B2 JP4073745 B2 JP 4073745B2
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Japan
Prior art keywords
hot water
type electric
water heater
water storage
storage type
Prior art date
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Expired - Fee Related
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JP2002278470A
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JP2004116826A (en
Inventor
武美 木下
巨典 藤原
克也 ▲くわ▼木
肇 西野
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Hitachi Appliances Inc
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Hitachi Appliances Inc
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Description

【０００１】
【発明の属する技術分野】
本発明は、貯湯式電気温水器の配管構造に関し、特に、貯湯式電気温水器からの給湯流量を増大することができる貯湯式電気温水器の配管構造に関するものである。
【０００２】
【従来の技術】
一般的に、貯湯式電気温水器においては、その貯湯槽に、水道の直圧がかかる給水管が接続され、この給水管の圧力を利用して、貯湯槽に貯留されている湯を押し上げ、給湯を行うようにしている。
【０００３】
ところで、従来、貯湯式電気温水器の貯湯槽に給水管を接続する場合、電気温水器の貯湯槽に水道の直圧がかからないようにするために、給水管の最上流側に減圧弁を配設し、この減圧弁を介して接続するようにしていた。
【０００４】
【発明が解決しようとする課題】
しかしながら、このように、給水管の最上流側に減圧弁を配設して、貯湯式電気温水器の貯湯槽に給水管を接続するようにすると、貯湯式電気温水器の配管系の水圧が、減圧弁によって規制されることとなり、貯湯式電気温水器から供給される給湯流量を増大することが困難であるという問題があった。
【０００５】
本発明は、上記従来の貯湯式電気温水器機の有する問題点に鑑み、貯湯式電気温水器からの給湯流量を自由に増大することができる貯湯式電気温水器の配管構造を提供することを目的とする。
【０００６】
【課題を解決するための手段】
上記目的を達成するため、本発明の貯湯式電気温水器の配管構造は、水道の直圧がかかる給水管を分岐して、一方の分岐管を減圧弁を介して電気温水器の貯湯槽に接続するとともに、前記給水管を分岐した水道の直圧がかかる他方の分岐管に流量比率調整弁を配設し、該流量比率調整弁から分岐した分岐管を貯湯槽内に配設した間接熱交換器の入側に接続し、間接熱交換器の出側を前記流量比率調整弁の下流側の前記他方の分岐管に接続して給湯を行うようにしたことを特徴とする。
【０００７】
この貯湯式電気温水器の配管構造は、水道の直圧がかかる給水管を分岐して、一方の分岐管を減圧弁を介して電気温水器の貯湯槽に接続するとともに、前記給水管を分岐した水道の直圧がかかる他方の分岐管に流量比率調整弁を配設し、該流量比率調整弁から分岐した分岐管を貯湯槽内に配設した間接熱交換器の入側に接続し、間接熱交換器の出側を前記流量比率調整弁の下流側の前記他方の分岐管に接続して給湯を行うようにしているので、電気温水器の貯湯槽に給水管から水道の直圧がかからないようにしながら、貯湯式電気温水器の配管系の水圧を高めることができ、貯湯式電気温水器からの給湯流量を自由に増大することができ、また、必要に応じて、高温の湯を供給することもできる。
【０００８】
【発明の実施の形態】
以下、本発明の貯湯式電気温水器の配管構造の実施の形態を図面に基づいて説明する。
【０００９】
図１に、貯湯式電気温水器の配管構造の参考例を示す。
この貯湯式電気温水器の配管構造は、水道の直圧がかかる給水管３を分岐して、一方の分岐管３ａを減圧弁４を介して電気温水器の貯湯槽１に接続するとともに、給水管３を分岐した他方の分岐管３ｂと、貯湯槽１に接続された逆止弁６ａを途中に配した出湯管６とを、給湯管７が接続された混合弁９に接続したものである。
【００１０】
この場合において、貯湯槽１内には、ヒーター２を配設するとともに、貯湯槽１の下部には、排水弁５ａを配設した排水管５を、また、貯湯槽１の上部には、圧力逃がし弁８ａを配設した圧力逃がし管８を、それぞれ接続するようにする。
【００１１】
また、給水管３を分岐した他方の分岐管３ｂにも、必要に応じて、逆止弁３ｃを配設することができる。
【００１２】
この貯湯式電気温水器の配管構造は、電気温水器の貯湯槽１に給水管３から水道の直圧がかからないようにしながら、貯湯式電気温水器の配管系の水圧を高めることができ、貯湯式電気温水器からの給湯流量を自由に増大することができるものとなる。
【００１３】
次に、図２に、本発明の貯湯式電気温水器の配管構造の第１実施例を示す。
【００１４】
この貯湯式電気温水器の配管構造は、上記参考例の貯湯式電気温水器の配管構造において、他方の分岐管３ｂに、出側２方向の流量比率を任意に調節できる流量比率調整弁３ｄを配設し、この流量比率調整弁３ｄから分岐した分岐管３ｅを貯湯槽１内に、例えば、水道の直圧をかけることができる螺旋状に配設した配管からなる間接熱交換器１０の入側に接続し、間接熱交換器１０の出側を流量比率調整弁３ｄの下流側の他方の分岐管３ｂに接続するようにしたものである。
【００１５】
この貯湯式電気温水器の配管構造は、上記参考例の貯湯式電気温水器の配管構造の有する作用に加え、水道の直圧をかけることができる貯湯槽１内に配設した間接熱交換器１０において給水管３からの水を間接加熱することができ、このため、貯湯式電気温水器から高温の湯を供給することができるものとなる。
【００１６】
次に、図３に、本発明の貯湯式電気温水器の配管構造の第２実施例を示す。
この貯湯式電気温水器の配管構造は、水道の直圧がかかる給水管３を分岐して、一方の分岐管３ａを減圧弁４を介して電気温水器の貯湯槽１に接続するとともに、給水管３を分岐した他方の分岐管３ｂに、出側２方向の流量比率を任意に調節できる流量比率調整弁３ｄを配設し、この流量比率調整弁３ｄから分岐した分岐管３ｅを貯湯槽１内に、例えば、水道の直圧をかけることができる螺旋状に配設した配管からなる間接熱交換器１０の入側に接続し、間接熱交換器１０の出側を流量比率調整弁３ｄの下流側の他方の分岐管３ｂに接続し、さらに、給湯管７に接続したものである。
【００１７】
この場合において、貯湯槽１の上部に接続した出湯管６を、他の系統の給湯管７Ａに接続するようにする。
【００１８】
なお、この貯湯式電気温水器の配管構造のその他の構成は、上記参考例の貯湯式電気温水器の配管構造と同様である。
【００１９】
この貯湯式電気温水器の配管構造は、電気温水器の貯湯槽１に給水管３から水道の直圧がかからないようにしながら、貯湯式電気温水器の配管系の水圧を高めることができ、貯湯式電気温水器からの給湯流量を自由に増大することができ、また、貯湯槽１の上部に接続した出湯管６から、他の系統の給湯管７Ａに高温の湯を供給することができるものとなる。
【００２０】
以上、本発明の貯湯式電気温水器の配管構造について、複数の実施例に基づいて説明したが、本発明の貯湯式電気温水器の配管構造は、上記実施例に記載した構成に限定されるものではなく、本発明の貯湯式電気温水器の配管構造の構成は、その趣旨を逸脱しない範囲において適宜に変更することが可能である。
【００２１】
【発明の効果】
本発明の貯湯式電気温水器の配管構造によれば、水道の直圧がかかる給水管を分岐して、一方の分岐管を減圧弁を介して電気温水器の貯湯槽に接続するとともに、前記給水管を分岐した他方の分岐管に流量比率調整弁を配設し、該流量比率調整弁から分岐した分岐管を貯湯槽内に配設した間接熱交換器の入側に接続し、間接熱交換器の出側を前記流量比率調整弁の下流側の前記他方の分岐管に接続して給湯を行うようにしているので、電気温水器の貯湯槽に給水管から水道の直圧がかからないようにしながら、貯湯式電気温水器の配管系の水圧を高めることができ、このため、電気温水器の貯湯槽の耐圧を高めることなく、貯湯式電気温水器からの給湯流量を自由に増大することができ、また、必要に応じて、高温の湯を供給することもできる。
【図面の簡単な説明】
【図１】 貯湯式電気温水器の配管構造の参考例を示す構成図である。
【図２】 本発明の貯湯式電気温水器の配管構造の第１実施例を示す構成図である。
【図３】 本発明の貯湯式電気温水器の配管構造の第２実施例を示す構成図である。
【符号の説明】
１ 貯湯槽
２ ヒーター
３ 給水管
３ｃ 逆止弁
３ｄ 流量比率調整弁
３ｅ 分岐管
４ 減圧弁
５ 排水管
６ 出湯管
６ａ 逆止弁
７ 給湯管
７Ａ 給湯管
８ 圧力逃がし管
９ 混合弁
１０ 間接熱交換器[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a piping structure of a hot water storage type electric water heater, and more particularly to a piping structure of a hot water storage type electric water heater that can increase the flow rate of hot water supplied from the hot water storage type electric water heater.
[0002]
[Prior art]
In general, in a hot water storage type electric water heater, a hot water tank connected to a hot water tank is connected to the hot water tank, and the hot water stored in the hot water tank is pushed up using the pressure of the hot water pipe. I try to hot water.
[0003]
By the way, conventionally, when connecting a water supply pipe to a hot water storage tank of a hot water storage type electric water heater, a pressure reducing valve is arranged on the most upstream side of the water supply pipe in order to prevent direct water pressure from being applied to the hot water storage tank of the electric water heater. And connected via this pressure reducing valve.
[0004]
[Problems to be solved by the invention]
However, if a pressure reducing valve is provided on the most upstream side of the water supply pipe and the water supply pipe is connected to the hot water storage tank of the hot water storage type electric water heater, the water pressure of the piping system of the hot water type electric water heater is reduced. Therefore, there is a problem that it is difficult to increase the flow rate of hot water supplied from the hot water storage type electric water heater.
[0005]
In view of the problems of the conventional hot water storage type electric water heater, the present invention has an object to provide a piping structure for a hot water storage type electric water heater that can freely increase the hot water supply flow rate from the hot water storage type electric water heater. And
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the piping structure of the hot water storage type electric water heater of the present invention branches a water supply pipe to which direct water pressure is applied, and one branch pipe is connected to a hot water storage tank of the electric water heater through a pressure reducing valve. Indirect heat in which a flow rate ratio adjusting valve is provided in the other branch pipe to which the direct pressure of the water pipe branched from the water supply pipe is connected, and the branch pipe branched from the flow rate ratio adjusting valve is provided in the hot water tank. It is connected to the inlet side of the exchanger, and the outlet side of the indirect heat exchanger is connected to the other branch pipe on the downstream side of the flow rate ratio adjusting valve to supply hot water .
[0007]
This hot water storage type electric water heater has a piping structure that branches a water supply pipe to which direct water pressure is applied, and connects one branch pipe to a hot water storage tank of the electric water heater through a pressure reducing valve and branches the water supply pipe. The flow rate adjustment valve is arranged on the other branch pipe to which the direct pressure of the water supply is applied, and the branch pipe branched from the flow rate ratio adjustment valve is connected to the inlet side of the indirect heat exchanger arranged in the hot water tank, Since the outlet side of the indirect heat exchanger is connected to the other branch pipe on the downstream side of the flow rate ratio adjusting valve so as to perform hot water supply, the direct pressure of the water supply from the water supply pipe is supplied to the hot water storage tank of the electric water heater. The water pressure of the hot water storage type electric water heater can be increased, the flow rate of hot water supply from the hot water storage type electric water heater can be increased freely, and hot water can be added as necessary. It can also be supplied.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a piping structure for a hot water storage type electric water heater according to the present invention will be described below with reference to the drawings.
[0009]
FIG. 1 shows a reference example of a piping structure of a hot water storage type electric water heater .
The hot water storage type electric water heater has a piping structure in which a water supply pipe 3 to which direct water pressure is applied is branched, and one branch pipe 3a is connected to a hot water storage tank 1 of the electric water heater through a pressure reducing valve 4 and water supply. The other branch pipe 3b branched from the pipe 3 and the hot water pipe 6 provided with a check valve 6a connected to the hot water tank 1 are connected to the mixing valve 9 to which the hot water pipe 7 is connected. .
[0010]
In this case, a heater 2 is provided in the hot water tank 1, a drain pipe 5 provided with a drain valve 5 a is provided in the lower part of the hot water tank 1, and a pressure is provided in the upper part of the hot water tank 1. Each of the pressure relief pipes 8 provided with the relief valve 8a is connected.
[0011]
Moreover, the check valve 3c can be arrange | positioned as needed also to the other branch pipe 3b which branched the water supply pipe 3. FIG.
[0012]
The piping structure of this hot water type electric water heater can increase the water pressure of the piping system of the hot water type electric water heater while keeping the hot water storage tank 1 of the electric water heater from being subjected to direct water pressure from the water supply pipe 3. The hot water supply flow rate from the electric water heater can be increased freely.
[0013]
Next, FIG. 2 shows a first embodiment of the piping structure of the hot water storage type electric water heater of the present invention.
[0014]
The piping structure of this hot water type electric water heater is the same as the piping structure of the hot water type electric water heater of the above reference example , but the other branch pipe 3b is provided with a flow rate adjusting valve 3d capable of arbitrarily adjusting the flow rate ratio in the two outlet directions. The branch pipe 3e branched from the flow rate ratio adjusting valve 3d is placed in the hot water storage tank 1, for example, an indirect heat exchanger 10 made of a pipe arranged in a spiral shape capable of applying direct water pressure. The outlet side of the indirect heat exchanger 10 is connected to the other branch pipe 3b on the downstream side of the flow rate ratio adjusting valve 3d.
[0015]
The piping structure of this hot water type electric water heater is an indirect heat exchanger disposed in the hot water tank 1 capable of applying direct water pressure in addition to the operation of the piping structure of the hot water type electric water heater of the above reference example . 10, the water from the water supply pipe 3 can be indirectly heated, so that hot water can be supplied from the hot water storage type electric water heater.
[0016]
Next, FIG. 3 shows a second embodiment of the piping structure of the hot water storage type electric water heater of the present invention.
The hot water storage type electric water heater has a piping structure in which a water supply pipe 3 to which direct water pressure is applied is branched, and one branch pipe 3a is connected to a hot water storage tank 1 of the electric water heater through a pressure reducing valve 4 and water supply. The other branch pipe 3b that branches the pipe 3 is provided with a flow rate adjustment valve 3d that can arbitrarily adjust the flow rate ratio in the outlet two directions, and the branch pipe 3e branched from this flow ratio adjustment valve 3d is connected to the hot water tank 1. Inside, for example, connected to the inlet side of the indirect heat exchanger 10 made of a pipe arranged in a spiral shape capable of applying a direct pressure of water, and the outlet side of the indirect heat exchanger 10 is connected to the flow rate adjusting valve 3d. It is connected to the other branch pipe 3 b on the downstream side and further connected to the hot water supply pipe 7.
[0017]
In this case, the hot water outlet pipe 6 connected to the upper part of the hot water tank 1 is connected to the hot water supply pipe 7A of another system.
[0018]
In addition, the other structure of the piping structure of this hot water storage type electric water heater is the same as that of the hot water storage type electric water heater of the reference example .
[0019]
The piping structure of this hot water type electric water heater can increase the water pressure of the piping system of the hot water type electric water heater while keeping the hot water storage tank 1 of the electric water heater from being subjected to direct water pressure from the water supply pipe 3. The hot water flow rate from the electric water heater can be increased freely, and high temperature hot water can be supplied from the outlet pipe 6 connected to the upper part of the hot water tank 1 to the hot water pipe 7A of another system. It becomes.
[0020]
As mentioned above, although the piping structure of the hot water storage type electric water heater of this invention was demonstrated based on several Example, the piping structure of the hot water storage type electric water heater of this invention is limited to the structure described in the said Example. However, the configuration of the piping structure of the hot water storage type electric water heater of the present invention can be changed as appropriate without departing from the scope of the invention.
[0021]
【The invention's effect】
According to the piping structure of the hot water storage type electric water heater of the present invention, the water supply pipe to which direct water pressure is applied is branched, and one branch pipe is connected to the hot water storage tank of the electric water heater through the pressure reducing valve. A flow rate adjustment valve is provided on the other branch pipe branched from the water supply pipe, and the branch pipe branched from the flow rate adjustment valve is connected to the inlet side of the indirect heat exchanger provided in the hot water tank. Since the outlet side of the exchanger is connected to the other branch pipe on the downstream side of the flow rate ratio adjusting valve so that hot water is supplied, the hot water storage tank of the electric water heater is not subjected to direct water pressure from the water supply pipe. However, it is possible to increase the water pressure of the piping system of the hot water type electric water heater, so that the hot water flow rate from the hot water type electric water heater can be increased freely without increasing the pressure resistance of the hot water storage tank of the electric water heater. You can also supply hot water as needed. .
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing a reference example of a piping structure of a hot water storage type electric water heater .
FIG. 2 is a configuration diagram showing a first embodiment of a piping structure of a hot water storage type electric water heater according to the present invention.
FIG. 3 is a block diagram showing a second embodiment of the piping structure of the hot water storage type electric water heater of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hot water storage tank 2 Heater 3 Water supply pipe 3c Check valve 3d Flow rate adjustment valve 3e Branch pipe 4 Pressure reducing valve 5 Drain pipe 6 Hot water pipe 6a Check valve 7 Hot water pipe 7A Hot water pipe 8 Pressure relief pipe 9 Mixing valve 10 Indirect heat exchange vessel

Claims (1)

水道の直圧がかかる給水管を分岐して、一方の分岐管を減圧弁を介して電気温水器の貯湯槽に接続するとともに、前記給水管を分岐した水道の直圧がかかる他方の分岐管に流量比率調整弁を配設し、該流量比率調整弁から分岐した分岐管を貯湯槽内に配設した間接熱交換器の入側に接続し、間接熱交換器の出側を前記流量比率調整弁の下流側の前記他方の分岐管に接続して給湯を行うようにしたことを特徴とする貯湯式電気温水器の配管構造。Branch the water supply pipe to which the direct pressure of the water supply is branched, connect one branch pipe to the hot water storage tank of the electric water heater via the pressure reducing valve, and the other branch pipe to which the direct pressure of the water supply branching off the water supply pipe A flow rate adjusting valve is connected to the inlet side of the indirect heat exchanger provided in the hot water tank, and a branch pipe branched from the flow rate adjusting valve is connected to the outlet side of the indirect heat exchanger. A hot water storage type electric water heater piping structure, wherein hot water is supplied by connecting to the other branch pipe on the downstream side of the regulating valve.
JP2002278470A 2002-09-25 2002-09-25 Piping structure of hot water storage type electric water heater Expired - Fee Related JP4073745B2 (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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JP2007318181A Division JP4374390B2 (en) 2007-12-10 2007-12-10 Hot water storage type electric water heater

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JP4073745B2 true JP4073745B2 (en) 2008-04-09

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JP2006266599A (en) * 2005-03-24 2006-10-05 Matsushita Electric Ind Co Ltd Hot water storage type water heater
JP4752347B2 (en) * 2005-06-22 2011-08-17 パナソニック株式会社 Hot water storage water heater
JP2007032996A (en) * 2005-07-29 2007-02-08 Matsushita Electric Ind Co Ltd Hot-water storage type hot-water supply unit
JP2007225252A (en) * 2006-02-27 2007-09-06 Toto Ltd Electric water heater with water purifier
JP5081736B2 (en) * 2008-06-18 2012-11-28 日立アプライアンス株式会社 Water heater
JP5558407B2 (en) * 2011-04-28 2014-07-23 三菱電機株式会社 Water heater
CN102914050A (en) * 2012-11-19 2013-02-06 上海理工大学 Ultra-thin electric water heater liner and production method thereof

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